Improvement in sub-cutaneous exhauster



` y of drawing makingpartof the same, in which- `practice of medicalscience in all sub-cutaneous op-v A tions of matter under the skin, andtherebyT assisting Vheretofore employed.

the mattei' drawn iiitothe cylinder, whereby the latter emptied withoutthe necessity of withdrawing the troi. necessary to introduce andwithdraw thetrocar pipe l i a'iclng'for keeping up the vacuum in thecylinder for Hthematter collected under the skin is so thick that theend of its stroke, thus` continuing ,the

` long as may be necessary or desirable.

i plorations, `I t tothe end of pipe P a trocar pipe,

GEORGES DIEULAFOY, or Pianist France.

I Letters .Patent No. 103,02

7, dated Moy i7, 1870.

nvmnovmwem"` 1N SUB-GUTANEQUSEXHAUSTER tithe' Schedule referred to inthese Letters Patent and making part of the same.

To all whom ttmty concern: y

Be it known that L Gnonons DIEULAFOY, of Paris, in theEmpire of France,have invented a Pneumatic Sub-cutaneous Exhaustemand do hereby declarethat the following is a full, clear, and cxactdescription of the same,reference `being had to the annexed sheet Figure l is the .instrumentwhich has been found to be a very important andvaluable assistant in theerations. l

This invention comprisesimportant improvements in instruments fordetecting the character of collecthesurgeon to determine as to theusefulness of a more `important operation, and for the ,practice oflocal anasthesy more readily than bythe instruments The rst improvementconsists iu providing the cylinder of the exhauster with an extrastop-cock and nozzle, to which apipe may be applied'for expelling isrendered 'capable of being alternately filled' and car pipe from thewound, and consequeutly'without pain to the patient, whereas, heretoforeitl'ha-s been at each stroke ofthe piston, thereby causing, in someoperations, several repetitions'of intense and increasing pain.

The second part lof 'my invention consists in pr any length of time.,when, as is frequently the case,

its iiow is very slolw. To effect this,\a notch is ,made in thepiston-rod, andla block adapted to engage the notch is fitted into thehead` of the-cylinder, whereby, when the pistonlis -drawn back, it canbe locked at `vacuum as A is a pump-barrel, of glass, to' which `arettedat P and G, two short pipes, each provided with a stop-`cocltdesignated p and g, and terminatedby'a nozzle designated, P' andG', which allows ot' fixing thereto either a ti'ocar pipe, or anyordinary one.

In the case above allndedto, of sub-cutaneous cx- VM,.f1g. 2, ofrequisite length, (it will be observed that the ypipe-i fend isperforated with many holes, so as to avoid `obstruction)and after "thesame is inserted in the part' to be explored, it 'will be only requisitenext to multe a vacuum; or `partial vacuum,within the upon the part tobe operated upon.

syringe by drawing out the piston B, by its rod 71, so

,as to draw the matter sought for, and examineit.

In case acontinuous operation becomes desirable,

I attach to the 'pipe end or nozzle G',ianother ordinary pipe end, andwhen the syringe-barrel is filled up with the matter to expel, I shutthe cock p on pipe P, and opening thaton pipe G, and moving the piston Bbackward, the liquid is ejected, and th'us prepared to have the circle gon pipe G closed, andthe circlefp on pipe P opened again, ready toinspire or draw outa second charge of the purulent or-other matter, byfurther operation. j

`When the instrument is to be used'for local anesl4 thesy, I fit onv thepipe P a common pipe, care being had that the end thereof shall bepierced with one hole'as small as possible. The syringe is filled withether, and the piston B is moved to expel the same The indispensabletime necessary' for emptying the 'syringe ont on the parts to be treatedshall be sut- `cient to produce complete anesthesy The piston-rod of theexhauster may be graduated It may with marks and figures, as will beobvious. also be` prepared by means of a thread and nut, E, so as todetermine' its stroke, and thus serve to establish more positively adosing or measure, either for ejecting or injecting purposes.

The vacuum obtained by the mere traction or pullingof the piston rod,must in some cases be kept up for a long period, to allow the thickVmatter time to ow in slowly to fill it. To this end I provide in the4lower part of the roda notch, C, and inA the lid or socket part of thepump-barrel, 1 fit a block, D. O o

Athe piston reaching the end of its stroke, it suices .to impart aslight rotary motion thereto for the said block D'coming to it into thenotchG, and thus constitute a stop.

.Exhaustion is then /produced under the mere influence of atmosphericpressure, whether the object may be the introduction'ihto thepump-barrel of any subcutaneous liquid, or the injection of amedicamental one.

This instrument may be used alone, .in some cases, for discharging theentire' collection of mattei', without a further operation.

These various operations may take place without it being necessary towithdraw the trocar pipe from the wound, andconsequently without anypain to the patient, `which result is immense when we consider that suchwithdrawing was to be eiiected heretofore i at each operation `or partofl the operation.

The form and dimensions of the constituent parts of my instrument maybevaried without departing from Athe nature of my invention, therefore Ido not', conne myself to the precise details herein shown and described,but

What I do claim as new, :md'desire to secure by Let.-l tels Patent, is-Y 1.' A glass cylinder,A, closed al; the ends, and pro vided with a.plunger, B, and with' nozzles G P', and.

cocks G P, said nozzles being adapted to have applied to them trocar andother pipes, substantially as and for the purposes described.

2. The notch O in the piston-rod, and the block D int-he end of' thecylinder, so adapted to each lother as to retain the pist-on at the endof its-stroke, whererby the vacuum in the .cylinderis kept up,-snbs,tnn

, tially as and' for the purposeset forth.

DOCTEUR G. DIEULAFOY, [L s.]

Witnesses: Y l

` D. vRocrcrnNs'Jrnnr,

L. BARnoI/r.

